The document assumes Docker is installed and running... sudo systemctl start docker or use podman instead.

Perhaps we should move to both using podman by default and providing a build script such as the one in the docs repos that runs all the appropriate commands?

Fedora 31 Workstation beta of my computer fails to boot Docker .
[sujiniku@localhost ~]$ sudo systemctl start docker
Job for docker.service failed because the control process exited with error code.
See "systemctl status docker.service" and "journalctl -xe" for details.

As a fundamental cause of these problem,
Our Fedora community have no system to report the test results of launching fedora-web / websites at pre-Release .

The Fedora community is nominally a community that creates operating systems, not a server management community,
The pre-Release test should be more aggressive.

Those who are not going to test pre-Release should move to the Cent OS community, or otherwise find a job in a Red Hat not Fedora.

@sujiniku I am not sure where these comments are coming from.

The issue with the website build script requiring docker is unrelated to your testing of the beta of Fedora 31. It is a beta, the point of that release is to find these kinds of problems.

If you can't get docker working on Fedora 31 you should avail yourself of the various bug reporting mechanism our community uses. You can even contribute the fix on your own as a member of the community. There is no special "Red Hat Privilege".